Pete12345 wrote:

Strange they act like a variable resistor if they have electronics inside ?

That was my thought. I would assume they would need some sort of voltage there to make them work and I suspect the voltage from my Philips bench multimeter wouldn't be enough.

Well they are fitted, the calibration blocks have been put in and the readings from them are only 2 or 3 bits different to what was stored with the original sensors. The heatshields had fallen to pieces and the remains fell off years ago, so after Clive's warning, made a couple up from thin sheet alloy.

Well they didn't last long. I know I do quite a high mileage but under 1,000 miles is quite a bit less than I would expect. A couple of nights ago I noticed that my headlights seemed to be slightly high and then noticed that my mirrors weren't showing any sky behind me, just road. Stopped and got out of the car and while the rear looked to be at the correct height, the front was much higher than it should be. Plugged the Nanocom in and the readings from the front sensors were all over the place.

So I've been out and checked it today and this is what I found. The car isn't on a perfectly level spot but with the engine running the suspension wasn't moving so the car was sitting still rather than going up and down like the live readings on the Nanocom suggested. Video is here https://youtu.be/gr_mDBrzFsU.

As can be seen, although the car wasn't going up and down, both front sensors were giving wildly varying outputs. So the new ones have been taken off and will be going back to Rimmers and I've fitted one of the ones that I took off to fit these and my last remaining spare front sensor. It is going to need calibrating with the blocks again but is at least sitting level now.